From dec7f81370071b3e4d080d14491f60ef0e5577b8 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Wed, 26 May 2004 11:47:55 +0000 Subject: [PATCH] Rick Richardson writes: Here is a patch that adds egrep -L support (the opposite of egrep -l). I realize this is probably too late for 1.0. But I offer it for your future consideration. egrep -L is used in some networking startup scripts I inherited. -Rick --- findutils/grep.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/findutils/grep.c b/findutils/grep.c index 6ece0ab12..4e7e15920 100644 --- a/findutils/grep.c +++ b/findutils/grep.c @@ -34,7 +34,7 @@ /* options */ -#define GREP_OPTS "lnqvscFiHhe:f:" +#define GREP_OPTS "lnqvscFiHhe:f:L" #define GREP_OPT_l 1 static char print_files_with_matches; #define GREP_OPT_n 2 @@ -55,15 +55,17 @@ static char fgrep_flag; #define GREP_OPT_h 512 #define GREP_OPT_e 1024 #define GREP_OPT_f 2048 +#define GREP_OPT_L 4096 +static char print_files_without_matches; #ifdef CONFIG_FEATURE_GREP_CONTEXT #define GREP_OPT_CONTEXT "A:B:C" -#define GREP_OPT_A 4096 -#define GREP_OPT_B 8192 -#define GREP_OPT_C 16384 -#define GREP_OPT_E 32768U +#define GREP_OPT_A 8192 +#define GREP_OPT_B 16384 +#define GREP_OPT_C 32768 +#define GREP_OPT_E 65536 #else #define GREP_OPT_CONTEXT "" -#define GREP_OPT_E 4096 +#define GREP_OPT_E 8192 #endif #ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS # define OPT_EGREP "E" @@ -147,7 +149,7 @@ static int grep_file(FILE *file) free(line); /* if we found a match but were told to be quiet, stop here */ - if (be_quiet) + if (be_quiet || print_files_without_matches) return -1; /* keep track of matches */ @@ -227,6 +229,11 @@ static int grep_file(FILE *file) puts(cur_file); } + /* grep -L: print just the filename, but only if we didn't grep the line in the file */ + if (print_files_without_matches && nmatches == 0) { + puts(cur_file); + } + return nmatches; } @@ -290,7 +297,7 @@ extern int grep_main(int argc, char **argv) bb_error_msg_and_die("invalid context length argument"); } /* sanity checks after parse may be invalid numbers ;-) */ - if ((opt & (GREP_OPT_c|GREP_OPT_q|GREP_OPT_l))) { + if ((opt & (GREP_OPT_c|GREP_OPT_q|GREP_OPT_l|GREP_OPT_L))) { opt &= ~GREP_OPT_n; lines_before = 0; lines_after = 0; @@ -305,6 +312,7 @@ extern int grep_main(int argc, char **argv) #endif print_files_with_matches = opt & GREP_OPT_l; + print_files_without_matches = (opt & GREP_OPT_L) != 0; print_line_num = opt & GREP_OPT_n; be_quiet = opt & GREP_OPT_q; invert_search = (opt & GREP_OPT_v) != 0; /* 0 | 1 */ -- 2.25.1